FIRE-FIGHTING INSTALLATION Russian patent published in 2018 - IPC A62C35/00 

FIELD: fire safety.

SUBSTANCE: invention relates to firefighting equipment. This is achieved by the fact, that in a fire extinguishing installation using a gas-liquid mixture containing a vessel wherein the extinguishing agent is stored, which is equipped with a vortex type gas-liquid mixture forming device, which is made in the form of a conical mixing chamber with a tangential inlet in the upper part, working gas (for example nitrogen or CO₂) to the vessel from the starting cylinder by means of a flexible high-pressure hose, wherein the gas supply is carried out along a vortex element coaxial to the chamber and made in the form of a conical perforated spiral with a perforation coefficient lying in the range of 50÷80 %, and the gas-liquid mixture supply to the central pipeline is carried out from the lower part of the chamber connected to the extinguishing agent discharge device combined with a safety valve, and the chamber vertical branch pipe is connected to the fire extinguishing agent filling device and the pressure indicator through the tee, wherein the working gas for modular units is stored in the starting cylinder located next to the extinguishing agent container, which is equipped with a stop-starting device for electrical or thermomechanical start-up, wherein the cylinder to the building structure securing is carried out with a bracket, and to ensure supply of optimum concentration of a gas-liquid mixture to all sprinklers, each distribution network node includes a gas-liquid mixture distribution device, when dividing the flow into two directions a standard tee is used, and when the flow is divided into three or more directions, the distribution device of a special design is used, for example a chamber type, and each sprinkler or unit of sprinklers is equipped with orientation device in one or two planes, each sprinkler consists of a base in the form of a nipple with a channel and a divider fixed to the holders, the base of the sprinkler is connected to at least two arched supports, which hold the bushing with the divider fixed on it, made in the form of a diffuser with a belt bent towards the base with a tabs located along the generatrix of the conical surface of the belt, and inside the divider a sprayer is additionally installed, made in the form of a cup fixed to the divider inner surface by at least three radial horizontally arranged flat tabs, wherein the cup axis coincides with the axes of the nipple and the bushing through channel, and its inner cavity is directed towards the bushing.

EFFECT: increase in the speed of the fire extinguishing system and the gas-liquid mixture spraying efficiency.

1 cl, 2 dwg